Rubber vehicle-tire.



EATENTED SEPT. 14o, 1907.

y vJ. J. EENDLER. RUBBER VEHICLE TIRE. APPLICATION FILED SEPT. 20.1905.

UNITED STATES PATEXT oEEIoE.

JOHN J. HEXDLER, OI" CHICAGO, ILLINOIS, ASSIGXOR TO TIGER TIRELOIIANY, A CORPORA- TION Ol" NEW YORK.

RUBBER VEHICLE-TIRE.

Specication of Letters Patent.

Patented Sept. 10, 1907.

Application filed September 20,1905. Serial No.-279 ,22l.

of' Cook and State of Illinois, have invented certain new and useful Improvements in Rubber Vehicle- Tires, of which the following is a specification. r

This invention relates to improvements inrubber vehicle tires, and refers more specifically` to an improved tire provided with a filling of tubular character adapted vto combine the advantages of a pneumatic tireand a solid or filled tirewhich cannot collapse. 'y Y -Among the salient objects of the invention are to provide a single tube tire which may be iniiat'ed with air but is provided with a filling of cellular cellulose and means for expand-ing the same by injecting liquid or steam therein; to provide a construction in which the tire is provided with a distributing tube extending .throughout its full circumferential length and through which air and either liquid or steam may be-injected into the cellular lling; to provide a construction 'in which the operation of the tire is substantially the same as that of an ordinary pneumatic tire when 'in ilated,. but which when punctured will 'not collapse, thereby avoiding injury to the tire or rim; and in generalto provide an improved construction of the character referred to.

To `theabove ends lthe invention consists inl the -matters hereinaiter described. and 'more particularly pointed out in the appended claims.

following description,`.reference being had to theiaccompanying drawings, in .which-' longitudinalV section of a'tire taken in the'c'entral plane oi the wheel.=

The problem bf devising-`arubber tire which possess tleh'resiliency of a penumaticlling but .neverf -theless will be'capable oi at leasta limited useaiter the tire has been punctured and thus preventinjury to the' tire or riinduringits ta'vel to a point'whereit i can be .repaired is, of conrseayery old one." I am aware-that many eiipedientshve been tried, such as.

making the tire of internally-cellular structure, pro-- vidi'ng` a multiplicity of '-sepaiateljyfI inflated tubes within a single larger outer tube; or providing a tubu.

lar tire having a fibrous lling and'whch would give to the tire the characteristieso a Vcushion tire-after puncturing. So faras-I am aware,k however it'has not heretofore .been proposed to provide a tire .which `after being puncturedisl capable of being distended and maintained in distended form indepenclentljrl .-oi the pneumatic ination. -Inv the presontjcasethev'inven The invention .'willbe readily understood from the tion is embodied in a single tube `tire, the walls of which are made air tight| so as to beadapted for inflation and the tire may be within the scope of the invention, secured to the rim of the wheel in any suitable or preferred manner.

Describing the construction shown in the drawings, Al designates thelrini of a vehicle wheel which in the1 present instance is of channel form and' adapted to receive thebase portion 2 of the tire; the latter being held within the channel by means of endless wires or rings 3-'3 threaded through the lateral projections of the base, in a well understood manner. p

4The tire is provided with a filling of cellularcellulose, as indicated at 5 which is filled within the tube before the latter is permanently sealed and is compacted therein to a moderate extent but not sufiiciently vto interfe're materially with the resilience of the substance nor todeprive it to any considerableextcnt of its porous or cellular character.` 'Iphis cellulose is of suchcharacter as to be light when dry resilient, highly porous, and of 'such nature as to vabsorb'moisture and expand forcibly and to a large extent as it-absorbs the liquid; I have found the pith of cornstalks to be a cellulose admiljably'sl'lited for this purposeand deeruthis the preferred substance becausevpossessing the" characteristics referred to in a markeddegree.

Preferably the material is. in ,f {ranulatedl lorm so as to 5 sion whenmoistened.

4An important feature of the present inventionref. I

sides in provdingmeans whereby the cellulose may be thoroughly and evenly moistenedafter the tire is completed and in placeuponthe'wheel and from time to timethereafte'r if neces'sa-yl To this end I constructthe ti're with lanl inner rigid tnbe extending vuninterruptedly the f ull circ umferental 'length of the tire and pro'- vided lat -frequentintervals with -jperforations 'as ,indi- .catedat-7 for'the escapeofsteam or water, or other liquid from the interior, of fthe tube into the' surrounding cellulose. il'preferft locatethetube axially wthinvthe 'tire and as a' convenient means of maintaining it in this position I provide aseriesof radial studs 8 extend`v '.ingfrom the inneside ofl the .tire radially to and engage" with theitube 6--a`r`1dt hu s'- serving to hold the latter.

properly centered withthe body. With the inner -tube'is arranged Vto communicate a nipple 9 which extends radially inward through the side wall of the tire.

and through the rim so este 'be accessible for filling, in

the usual; manner, the' en'dlof' the nipplepis provided" with a sealing cap 10de usual.

In operation after the tire `has been properly constructed as described and'secured tothe rim, I iniate the interior with air under pressure andalso inject' a limited ainountfofmoisturegeither in the form of water or steam, preferably using steam because of the ease` with which uniforrufcy of distribution'muybe secured. The inlet ils then closed and thc Lire is in condition to operate; the injection of the liquid serving Ato expand ille cellulosel forcibly Within the int-Orio;` of the tiro so that the supporting capacity oi' the latter `is not entirely dependent upon the pneumatic infini-ion.`

In case o a` puncture thc tire dou not collapse -instzmlly :1s in i-hc case of un ordinary pnounmtic tiro, but on the contrary tlionir is compelled to filter slowly ilnough'ilic cellular interior to tho point of escapo. Tho resilience of the tiro due to the iilling oi cellulose forms a' sullcicnt cushion to enable tho tire to run Without danger of injury until u place is rcachc'd whore itv can be aga-iu rcpuirod. lf for any rcnson tlio body ot' moist cclluloso is not found ,to suilicicnily maintain thc tirc distendod aficipuncturo, it', is only ncccssury to open thc nipple und injoct a. ilu-thor supply of watcr or sicnm in order tonioro fully expand thc ccllulosc I claim :is my invention:

1. As :i new article of umnufncturc. u vehicle tirc ui' tubular form provided.internally with :l distrihuiingiuim perforated :it inici-vals throughout its length, u filling.: of granuluicd cornsl'ulk ccllulose having' thc cupucity lo oxpund forcibly when inoistoncd, intol'poscd bciwcuu ilu` distributing' tube und theexterior tuhc, und :in'inlct coinniunicuting with snid distributing' tuhc und cxlcndlnu4 out to the exterior ofl tlm tiro.

As u now nrtilcvof nninut'ucturc. n siuglc'tuhc fire provided with un iutcrnnl ciulluss distributing iubc :lrrunged nppl'oxlmziiely uxinlly of thc tlrc. u serios uli' sul porting; studs invitindln; hoiwocn Suhl distributingv iuho :ind thoouicr tubo, unipplu urruugcd to cornnnuiicuu, with 'tho distributingY tuhc und cxtcurlilu.: through thc outcr tuhc und provided 'with u sculuf.: vnl. :nul u filling.;l ol' granulated cornsiulk rcllnloso minuut-tml within thc nutcr tubo und surrounding tho (listrilnlinuV tuhc, y

i()llN J. Ill-INDLER.

Witnesses Amir-:rrr ll. (lluvias, K. A. (Jn'wnlebno. 

